TLV1012

Looking for Pre amp for our microphone (ECM) application.

The TLV1012,a low cost solution look interest, but it seems to be used only inside a  microphones.

Is it correct,?can it be used with d/a?

  • Hi, Eli,

    Let me see if I can round up someone on this...

    -d2

    -----

    Don Dapkus

    Audio Applications Engineering Manager

    Dallas, TX USA

  • Eli,

    The TLV1012  has no VCC pin, the output and VCC are the same pin. This is ideal for a two wire microphone cable.

    However, it can be used outside a microphone to amplify audio signals.

    Regards,
    Ron Michallick

     

    Regards,
    Ronald Michallick
    Linear Applications

    TI assumes no liability for applications assistance or customer product design. Customer is fully responsible for all design decisions and engineering with regard to its products, including decisions relating to application of TI products. By providing technical information, TI does not intend to offer or provide engineering services or advice concerning Customer's design. If Customer desires engineering services, the Customer should rely on its retained employees and consultants and/or procure engineering services from a licensed professional engineer (LPE).

     

  • In reply to Ron Michallick:

    Eli,

    Yes, it can amplify a microphone signal with the output connected to a D/A.

     

    Regards,
    Ronald Michallick
    Linear Applications

    TI assumes no liability for applications assistance or customer product design. Customer is fully responsible for all design decisions and engineering with regard to its products, including decisions relating to application of TI products. By providing technical information, TI does not intend to offer or provide engineering services or advice concerning Customer's design. If Customer desires engineering services, the Customer should rely on its retained employees and consultants and/or procure engineering services from a licensed professional engineer (LPE).

     

  • In reply to Ron Michallick:

    Hi Ron,

    We're using the TLV 1012 as a pre amplifier for our MIC input. We're facing a specific noise coupled to Pre amplifier output whenever Wi-fi enabled. In data sheet , it has suggested to connect 10pf & 33pf on Pre amplifier o/p for avoiding noise due to GSM signal (980, 1800/1900 MHz). Similarly can i use some capacitor to avoid Wi-fi specific noise (2400 MHz)? what should be the capacitor value? can you please guide me on this issue?

    Thanks & regards,

    Nambirajan E